Internal-combustion engine



Aug. 24,1926. 1,596,897

A. R. SIEG LER INTERNAL COMBUSTION ENGINE Filed Feb. 20, 1925 Z! .HI

IN VEN TOR.

5E2 5. ATTORNEY.

Patented Au. 24, 19 26.

UNITED] STATES PATENT OFFICE.

' ARTHUR R. 'SIEGLEB, OF -DENVEB I COLORADO.

INTERNAL-COMBUSTION ENGINE.

Application filed-Februar 20, 1925. Serial No. 10,572.

" entering the ports of a sleeve valve as employed in internal combustion engines of the type disclosed in the said copending application. I w i A still further object is to provide means forv collecting the fluid which customarily gathers;v in the port openings of an internal combustion fluid engine and returning this oil to the system. l 1

- Other objects and advantages reside inthe detail construction ofthe invention, which result in simplicity, economy and efliciency, and'which will become. more apparent from the following description. 1 Q In the, following detailed description of the invention, reference is bad toithe ,accompanyingjdrawing which forms apart hereof. Like numerals refer to.li ke. parts in all viewsofthe drawing and throughout the description. ,In the. drawing; V; i

. Figure 1 illustrates a sideelevation of a cylinder of an internal combustion engine of the fluid type such as described in the said co-pending application- In thisview,

the cylinder wall is broken away to illustrate the interior construction.

Figure 2 1s adetail view showing round ports in place of the rectangular ports of Fig r .1

The invention comprises cylinder .10, closed at its bottomas shown at 11, and provided with a cylinder head 12. The cylinder head carries, an opening 1 3-through which-fuel is admitted to the combustion chamber. In the cylinder illustrated the fuel is ignited by. the compression tempera- In the cylinder 10, -an internal reciprocating sleeve valve 141 is arranged: The sleevevalve l i is rec1pro= ture in the cylinder.

catedb mea-nsof an arm 15 and a connect-m jag re] it operated fromanyconvenient aunt-ca such as. llustrated n the baltiutlw with the discharge ports 23.

compressed air -21, and the openings 26 into the cylinder. This 1 compressed the cylinder. by a closing the ports 19 and 21 and openlng the ports 23 and 25. Fluid under pressure the cylinder intake manifold 24 and the intake ports v25. ,The fluid discharge pipe 29 is closed by illustrated in th'eapplicants said co-p'endin application. The 1? {at the upper end thereof. When'the compression determined point, fuel is. admitted through ward, driviag I eharge 0x16111113 pending application. Apiston 17 recipro cateswithin the sleeve valve 141. The cylinder 10 is provided withan exhaust manifold .18, from which exhaust ports 19 open tothe interior of the cylinder; with a compressed air manifold 32, from which air ports 21 communicate with the interior of the cylinder; with a fluid discharge manifold 22, from which discharge ports 23 communicate with;the"interior of the cylinder; and'with a fluid intake manifold 24:, from which intakeports 25- communicatewith the interior .of the cylinder. The sleeve valve 14 is provided. with compressed air openings. 26, arranged to register with the air ports 21, and with fluid discharge openings 27, arrangedto register 7 The exhaust ports 19 and intake ports 25 are openedand closed by the upper and lower edges of the sleeve valve 14, respectively. Afluid intakev pipe 28 communicates with the. fluid intake manifold 24 anda fluid discharge pipe 29 communicates with a fluid discharge manifold22. A compressed air pipe-41 com- -municates with a compressed air. manifold 21 and an exhaust-pipe 18 communicates ,with the exhaust manifold 18.

As illustrated, the sleeve valve 1 1 is in the scavenging position. Compressed air is flowing from the pipe tlthrough the manifold 20, the. air: ports air. is forcing the burned gases through the exhaust ports 19, the exhaust manifold-18, and the exhaustpipe .18. Duringthe next cycle of operation, the sleeve valve ltwill be moved to the top of the connecting rod 16, thus from a fluid turbine (not shown) now enters an external valve (not-shown) such as fluid forces the piston upward in the cylinder-compressing the air hasreached a prethe opening 13 and exploded. he pressure efithe explosion forces the 131513011 17 downthe fluid. through the 10 fromthe pipe 28 through the r compressed air ports 21.

municate with an external acket 32 which scribed.

charge manifold 22, discharge pipe 29 and the throttle valve (not shown) mentioned above, which is now open, to the said fluid turbine or any other suitable power device. I have found that fluid escaping around the piston 17 will enter the openings in the sleeve valve 14 and the ports in the cylinder. This fluid will be blown into the cylinder by the incoming compressed air and will be either carried away by the exhaust or burned during the'combustion. Ielim nate this loss of fluid by providing angularly placed channels 30 in the sleeve valve wall above the ports 26 and in the cylinder wall abovethe ports 19. These channels act to conduct fluid flowing down the walls, to the side of. the ports so that it will flow down alongsideot, not into the port openings.

Any fluid which may collectin the openings 26 of the sleeve valve, is removed by providing relatively narrow slots 31in the cylinder wall immediately above each of the These slots comsu'rrounds the cylinder 10 and from which the fluid is drained back to the system by means of a drain pipe 83. There is no communication between the exhaust manifold 18 and the jacket 32; V I

The slots 31 operate as follows: As the sleeve valve descends after the explosion cycle, each of the openings 26 must pass over one of the slots 31. At this time there 'is suflicient'compression in the cylinder, as

a result of the explosion, to .drive any fluid pocketed in the openings 26 through the slots 31 into the jacket 32, so that, when the openings 26 register'with the compressed air 150?? 21 they will be practically free from uic.

Any fluid flowing down the wall of'the sleeve valve 14 will collect in a peripheral groove 34 cut in the piston 17 and as the piston moves upward, during the compres sion cycle, the collected fluid in the groove will flow into the openings 26 from where it is removed to the slots 31, as before de The groove 34: is curved in cross section, as illustrated on the drawing. This curve is so designed that the contained fluid will be thrown against the cylinder wall as the piston moves downward. The pist'on 17 is driven downward with considerable Velocity. The inertia of the fluid contained in the slot causes it to follow the curve of the slot and be dashed against the inner wall of the sleeve valve 143. p

Should the contact between the sleeve valve 1 1 and the cylinder 10 orth'e pisto'n 17 and the sleeve valve 14: be relativelyloose, fluid will spurt upward between the contacting surfaces. To prevent this upward spurting fluid from collecting'on the cylinder head 12, I form a groove 35 in the cylinder head in which the upward Spurting fluid is confined and directed downward along the walls of the cylinder and sleeve valve.

When round ports and openings are employed in the'p' cylinder walls and sleeve valve, such as illustrated at 40, Fig. 2, 1 form a groove 36 completely surrounding the port which serves to deflect fluid from the portopnin'g. Should the engine be required to operate at times in other than a vertical position, -any fluid which'may be at that time abovethe piston 17 will flow toward the cylinder lieadf12, andcol lec-t in the groove35 from whence it will flow downward along the cylinder walls when the engine regains its'nor mal'p'osition. A V- shaped groove 37 is formed in the-sleeve valve below each series of openings 26 to deflect fluid from: the. openings when the cylinder is in the inverted position. lVith theround ports, the'groove 36 will serve to is desired to be'understood that the same may be varied, within the scope of the appended claims, without departing from the spirit of the invention. V:

Having'thus described the inventiom what I claim and desire'secured by Letters Patent 1. Means for preventing fluid from entering the ports of ayco'mbustion engine cylinder comprising angula'rly' placed channels formed in the walls of said'cyliiiderso'as to direct the flow said ports. I

2. Means for removing fluid collected by the ports of aslee've valve inan internal combustion engine comprising, slots formed in said cylinder and arranged to register of said fluidaway from 'with the ports of said sleeve valve was to remove collected fluid therefrom.

3. In an internal combustion engine comprising a cylinder was piston arranged to reciprocate within said cylinder; means for collecting fluid against the wall of said cylinder comprising, a peripheral "groove formed near the upper extremity of said piston.

, 4. In an internalcombustion engine, means for preventing the, collection of fluid on the" head of said cylinder, said means with the ports ofs aid 'sl-eeve'valve so as to remove collected fluid therefrom, and a jacket surrounding said cylinder and arranged to receive fluid from said slots.

6. An internal combustion engine comprising a cylinder, a sleeve valve arranged to reciprocate in said cylinder, and a piston operating Within said sleeve valve, said sleeve valve having a beveled upper extremity so as to direct fluid from the Walls of said cylinder to the interior of said sleeve 10 valve.

7. Means for preventing fluid from entertering the ports of a combustion engine cylinder comprising annular grooves formed in the Walls of said-cylinder and surroundl5 ing said ports.

In testimony whereof, I afiiX my signature.

ARTHUR R. SIEGLER. 

